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I'll try to start a small explanation. I may be wrong, I'll let
others correct me:<br>
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XMP is an optional part of the contents of an image file, designed
to hold structured data. It is almost human-readable. An image file
can have EXIF data and/or IPTC data and/or XMP data. XMP could
contain a copy of the data contained in EXIF or IPTC, but it can
also contain information neither EXIF nor IPTC can hold. XMP data
can be put in a sidecar file.<br>
<br>
A sidecar file is a file which contains data related to an image
file. A sidecar file has the same name as the corresponding image
file, but with a specific extension. For example, my first Canon
camera automatically added a sidecar (with extension .thm) to each
video to hold data which the .mov format could probably not
contain.
<pre class="moz-signature" cols="72">
--
Frédéric Da Vitoria</pre>
<br>
<div class="moz-cite-prefix">On 20/10/2025 19:22, NMH at STIC wrote:<br>
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cite="mid:000A4E67-AF18-46D7-BDEB-1E5FF92C5638@stic.net">
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<div><span style="font-size: 14px;">I love reading through these
questions, answers, and comments, but I often realize how much
of a rookie photographer/editor/software guru I am.</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;">In spite of my age, I love
learning new things, but some of these discussions are
seemingly very complex to me.</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;">XMP</span></div>
<div><span style="font-size: 14px;">Forks</span></div>
<div><span style="font-size: 14px;">Imgur</span></div>
<div><span style="font-size: 14px;">Sidecars</span></div>
<div><span style="font-size: 14px;">Interpretations</span></div>
<div><span style="font-size: 14px;">Etc.</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;">Have a great week all.</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;">As I said in the subject,
rhetorical.</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;"><br>
</span></div>
<div><span style="font-size: 14px;">Norm in Texas</span></div>
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